Patents by Inventor Taco Scherer

Taco Scherer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240417583
    Abstract: The present application relates to a colorant tablet comprising: a) at least one pigment; and b) at least one adjuvant. A pigment may be an organic pigment, and inorganic pigment, or combinations thereof. The pigment may be an insoluble pigment. An adjuvant may be a carbonate. The adjuvant may further comprise at least one acid. The colorant tablet may be at least partially dissolved in a solvent (including water) prior to adding to a formulation or directly into a formulation. The formulation may be a coating. A method of forming the colorant tablet is also disclosed.
    Type: Application
    Filed: June 18, 2024
    Publication date: December 19, 2024
    Inventor: Taco Scherer
  • Patent number: 10144795
    Abstract: The invention relates to a non-aqueous coating composition comprising a. a polyisocyanate, b. a polyol having an average functionality of more than 3 hydroxyl groups per molecule, c. a metal based curing catalyst for the addition reaction of isocyanate groups and hydroxyl groups, and d. a mercapto carboxylic acid, wherein the coating composition does not contain a carboxylic acid wherein the carbonyl group of the carboxylic acid is in conjugation with a ?-electron system.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 4, 2018
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Dirk Jan Vincent Christiaan Van Steenis, Hendrik Jan Willem Van Den Haak, Taco Scherer
  • Publication number: 20180002475
    Abstract: The invention relates to a non-aqueous coating composition comprising a. a polyisocyanate, b. a polyol having an average functionality of more than 3 hydroxyl groups per molecule, c. a metal based curing catalyst for the addition reaction of isocyanate groups and hydroxyl groups, and d. a mercapto carboxylic acid, wherein the coating composition does not contain a carboxylic acid wherein the carbonyl group of the carboxylic acid is in conjugation with a ?-electron system.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 4, 2018
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Dirk Jan Vincent Christiaan Van Steenis, Hendrik Jan Willem Van Den Haak, Taco Scherer
  • Patent number: 9745401
    Abstract: The invention relates to a non-aqueous coating composition comprising a. a polyisocyanate, b. a polyol having an average functionality of more than 3 hydroxyl groups per molecule, c. a metal based curing catalyst for the addition reaction of isocyanate groups and hydroxyl groups, and d. a mercapto carboxylic acid, wherein the coating composition does not contain a carboxylic acid wherein the carbonyl group of the carboxylic acid is in conjugation with ?-electron system.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 29, 2017
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Dirk Jan Vincent Christiaan Van Steenis, Hendrik Jan Willem Van Den Haak, Taco Scherer
  • Publication number: 20150017336
    Abstract: The invention relates to a non-aqueous liquid coating composition comprising a) a polyol, b) a polyisocyanate crosslinker c) one or more thiol-functional compounds, d) a metal-based curing catalyst for catalyzing the addition reaction of isocyanate groups and hydroxyl groups, e) a base having a pKa value of at least 7, and which base does not react with isocyanate groups in a way wherein the basicity is reduced, and f) one or more acid group-containing compounds, wherein the one or more thiol-functional compounds are present in an amount to provide a molar ratio of thiol groups over the metal atoms of the metal-based curing catalyst of 1 or higher, and wherein the base is present in a molar amount lower than the molar amount of thiol groups, and wherein the molar ratio of acid groups and base groups is 1:1 or higher.
    Type: Application
    Filed: March 4, 2013
    Publication date: January 15, 2015
    Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.
    Inventors: Taco Scherer, Nicolaas Jacob Van Beelen, Antonius Josephus Van Der Putten, Arnoldus Adrianus Jozef Maria Van Adrichem, David Elias Bruin, Marcella Gagliardo
  • Patent number: 8686103
    Abstract: The invention relates to a water borne coating composition comprising a) a polyol, b) a polyisocyanate crosslinker, and c) a thiol functional compound, wherein the molar ratio of isocyanate groups to thiol groups ranges between 1:0.0001 and 1:0.4. The invention further relates to the use of the coating composition, and to a kit of parts for preparation of the coating composition. The coating composition according to the invention displays a balance of high curing rate, long pot life, and good film appearance of the coating prepared from it.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: April 1, 2014
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Taco Scherer, Michèle Louis Van Wijk, Petrus Johannes Arnoldus Geurink, Nicolette De Wijs-Rot
  • Publication number: 20110212267
    Abstract: The invention relates to a non-aqueous coating composition comprising a. a polyisocyanate, b. a polyol having an average functionality of more than 3 hydroxyl groups per molecule, c. a metal based curing catalyst for the addition reaction of isocyanate groups and hydroxyl groups, and d. a mercapto carboxylic acid, wherein the coating composition does not contain a carboxylic acid wherein the carbonyl group of the carboxylic acid is in conjugation with ?-electron system.
    Type: Application
    Filed: October 19, 2009
    Publication date: September 1, 2011
    Inventors: Dirk Jan Vincent Christiaan Van Steenis, Hendrik Jan Willem Van Den Haak, Taco Scherer
  • Publication number: 20080119612
    Abstract: The invention relates to a water borne coating composition comprising a) a polyol, b) a polyisocyanate crosslinker, and c) a thiol functional compound, wherein the molar ratio of isocyanate groups to thiol groups ranges between 1:0.0001 and 1:0.4. The invention further relates to the use of the coating composition, and to a kit of parts for preparation of the coating composition. The coating composition according to the invention displays a balance of high curing rate, long pot life, and good film appearance of the coating prepared from it.
    Type: Application
    Filed: December 15, 2005
    Publication date: May 22, 2008
    Applicant: Akzo Novel Coatings International B.V.
    Inventors: Taco Scherer, Michele Louis Van Wijk, Petrus Johannes Arnoldus Geurink, Nicolette De Wijs-Rot
  • Patent number: 6562899
    Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of 1) a mixture of carboxylic acids comprising 50 to 80 mole % of an m- and/or p-aromatic and/or cycloaliphatic dicarboxylic acid, 20 to 50 mole % of an aliphatic dicarboxylic acid and/or aliphatic monocarboxylic acid with more than 6 carbon atoms, and, optionally, a tri- or higher-functional acid, and 2) a mixture of alcohols comprising an aliphatic diol with at least 4 carbon atoms and/or a cycloaliphatic diol with at least 4 carbon atoms, a C1-C4 alkoxy polyalkylene oxide glycol and/or C1-C4 alkoxy polyalkylene oxide 1,3-diol having a number average molecular weight of 500 to 3,000, and, optionally, a tri- or higher-functional polyalcohol, w
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: May 13, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Roelof Buter, André Steenbergen, Taco Scherer, Petrus Johannes Arnoldus Geurink
  • Patent number: 6509408
    Abstract: Aqueous-based cross-linkable binder composition comprising (A) an aqueous dispersion of a polyester-polyacrylate hybrid resin 50 to 90 wt. % of which is composed of polyester and 10 to 50 wt. % of which is composed of polyacrylate, which hybrid resin is obtainable by grafting a composition of radically polymerisable unsaturated monomers onto a partially unsaturated hydroxy-functional polyester resin, and (B) an organic polyisocyanate, wherein the partially unsaturated hydroxy-functional polyester is obtainable by reaction of a mixture of polycarboxylic and, optionally, monocarboxylic acids, and one or more (cyclo)aliphatic alcohols, wherein 0.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 21, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Roelof Buter, André Steenbergen, Petrus Johannes Arnoldus Geurink, Taco Scherer
  • Publication number: 20020016407
    Abstract: Aqueous-based cross-linkable binder composition comprising
    Type: Application
    Filed: May 21, 2001
    Publication date: February 7, 2002
    Inventors: Roelof Buter, Andre Steenbergen, Petrus Johannes Arnoldus Geurink, Taco Scherer
  • Publication number: 20020013404
    Abstract: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of
    Type: Application
    Filed: April 20, 2001
    Publication date: January 31, 2002
    Inventors: Roelof Buter, Andre Steenbergen, Taco Scherer, Petrus Johannes Arnoldus Geurink